As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 3937, THE CREW REPORTED A FUEL SMELL IN THE COCKPIT. THE AIRCRAFT LANDED AT IAH WITHOUT INCIDENT WHERE MAINTENANCE REMOVED AND REPLACED THE NUMBER ONE ENGINE FUEL NOZZLES, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.